Temperature logging

[BrotherMalice]

Does anyone keep track of temperatures - just seem this on ebay while looking for an STC1000:

http://www.ebay.co.uk/itm/Mini-PC-Lapto ... 19d27ad53b

What do you think?

 

[anthonyUK]

I do.
Briefly discussed on this thread - viewtopic.php?f=16&t=28295

 

[EskiBrew]

Depends what you want to measure with it. Those short sensor caps are ok but liquid can be drawn into them through heat cycling which can lead to problems sanitising them if you use them in contact with your brew. Bear in mind it is coming from Hong Kong so could take weeks to arrive and might get stopped at customs :hmm:

 

[Swift Pint]

Anthoyny, just out of interest, is it easy to get the temper2 running on the Pi? Also, what software are you using to take the temper2 data & create the graphs on your webpage? Looks good. :

 

[BrotherMalice]

Must have missed that thread It was just curiosity at this stage, I do plan on having a PC in the brewery when I get it (need to buy a house for that to happen) Just working out what I could do with the PC

 

[Northern Brewer]

Anthoyny, just out of interest, is it easy to get the temper2 running on the Pi? Also, what software are you using to take the temper2 data & create the graphs on your webpage? Looks good. :

the graphing looks like rrdtool I used to use it to graph network bandwidth many years ago. there's a very similar one called something like Cricket that was better with large data sets however things have probably moved on since then.

EDIT My memory has just been jogged. The reason rrdtool had an issue with large data sets was that at each polling period it generated all the graphs and web pages irrespective of whether the data was being viewed or not - at least it was when used in the tool I was using (MRTG) and eventually you got the stage where it couldn't complete this within the polling period. I was monitoring a very large data network so don't think this will happen in home use

 

[anthonyUK]

Anthoyny, just out of interest, is it easy to get the temper2 running on the Pi? Also, what software are you using to take the temper2 data & create the graphs on your webpage? Looks good. :

Cheers

It wasn't that easy but in the spirit of the Raspi foundation I'll be more than happy to pass on my SD card image.
I found a guy had written open source Linux drivers which after a few minor updates I got reading the temper2 reliably.

The graphs are created used RRDtool as mentioned.